Tracker-board and music-sheet.



P. B. KLUGH.

TRACKER BOARD AND MUSIC SHEET.

APPLICATION mso APR. s, 1910 l ,206,779 Patented Nov. 28, 1916.

4to the tracker board and music sheet UNITED PAUL BROWN' KLUGH. OF CHICAGO, ILLINOIS, ASSIGNOR TO THE CABLE COIVPANY, OF

CHICAGO, ILLINOIS,

A CORPORATION OF ILLINOIS.

TRACKER-BOARD AND MUSIC-SHEET.

Specification of Letters Patent. lgppl'p Nap-ya im Mga Application filed April 8. 191C. Serial No, 554.142.

llc it known that l. .Para Baows lx'm'oir, a citizen of the. Vnited States. residing" at (lucago. in the county of (look and State of Illinois` have invented a certain new and uset'ul Improvement in 'Frm-lur-loards and lslusic-Sheets, of which thc Vi"ollo\\'inffi is a tull7 clear, concise. and exact description. reference heine` had to thc accompan'vin;l` drawings. forming a part of this slieciiication. e

MLV invention relates to mechanical musical instruments, and especially to instruments conunonly known as player pianos or piano players.

The, invention relates more in particular arangrement or such instruments, and involves a construction of tracker board and music sheet employed in mechanical musical instruments for producing solo ell'ects.

The tracker board in question is provided with two sets or series oi" apertures, one of which may be the usual set of tracker hoard apertures and the other or' which is coinposed of narrow slots or slits7 each arranged at one side and in the rear of one or" the apertures of the first-mentioned or usual set ot apertures. The music sheet to be used with a tra-cker board ot this character is preferably provided with two different styles of perforations, the perforations or one style being' comparatively narrow and may los vof the usual Width of music sheet perforations, and the perforations of the other style beinga ot' greater width than those of the first mentioned style. The narrow perforations are or suchwidth as to register with and uncover the tracker hoard apertures of one set,-that is, the usual set,l ut not to open or uncover the supplemental apertures. The other or wide perforations of the music sheet are of such width as to uncover beth the usual aperture-s and the supplemental apertures. The supplemental apertures, being in the apertures, are uncovered or opened rst by the Wide pcrforations. f

The tracker board herein set forth and claimed can he used for producing solo effects and also for other purposes..

In the accompanying drawings. Figure l is a front elevation of a tracker board andmusic sheet embodying my present inventracker apertures fl.

rear of the usualA tion: Fin. 2 is a front elevation of a portion ol' the tin-ulcer hoard; Fig'. Il is a sectional New taken on they line l-`l in Fig. 2.

ln the drawings. the tracker hoard is represented at? l and the music sheet at 2. The tracker hoard is pr/wided with a series ot' apertures I3. il which ma \v he oi an); convenient shape. lull are preferably round. as

shown in hier. 2. The tracker hoard is also provided with a sei-oud or supplemental ries ot' apertures -l l which are at one side and in the, rear ol'gthe apertures 8. 3 and are preferably in the forni of long narrow slofs or slits.

lhe music sheet 2 is provided with pcrforations 5. 5 which ma)v he ot the usual or ordinsrv width and` as such. are Vcapable ot' opening the apertures Il, 3 at' the tracker hut incapable ot' openingthe supplemental apertures 4l. -lbecause they are not sufficiently wide to uncover said Supplemental apertures. The music sheet is also provided with other pertoratnms (l. G otl Igreater width than the perfor-ations l '5. each suilicientl)Y wide to open both an ordinary aperture 3 and associated aperture l. as shown in Fig. l. As the. music. sheet advances in the direction oi the arrow in Fie'. l. the narrow or usual periorations 5. 5 will open the 3 in the usual way', and the wide perforations (l. G will first open the apertures l. l with which they register and then open the associated apertures In Fig. l. l' have shown two series of tuhes, 7. T and 9. S for the apertures 3, 3 and two series ot' tuhes` il. Wand l0. l0. for the. sumilemental apertures l, l. The tubes S. S are lientl lown and the tu'nes l0. l0 are heut up, whereas the tubes T. 7 and 9, 9 extend straight hack. the result of which is that thc pneumatic connections for 4the tracker' can he readily and easily made. It' will he seen that the music sheet has two kinds or are so alined as to track with the usual Set ot' apertures in a tracker board, and it Weill also he seen that the tracker hoard has its supplemental apertures arranged in the rear ot and entirely ont'ot alirieinent With the usual apertures,-hy entirely out of alinementl heine' meant that the supplemental apertures are. at 4one side of the usual aperstyles of perforations, both of which tures so that no partcof any aperture is in direction-f travel o the music sheet. It will also be seen that the narrow perforations ofthe music sheet open the usual tracker board aperturesonly, whereas the Wide' perforations open both the usual and associated supplemental apertures.

What claim as my invention is:

1. The combination of a tracker having the usual set of apertures and also having 2liA `.other and offset therefrom longitudinally of Ythe tracker, the apertures of the front set bei/ng circular and on the same side of the A corresponding apertures of the rear set and the apertures of the rear set being elongated transversely of the tracker.

3. A tracker having two sets of apertures arranged in pairs, each pair consisting of onefront and one rear aperture only, one aperture of each pair being in front of the other and offset therefrom, the apertures of therfront set being circular and on the same side o'f the corresponding apertures of the rear set and the apertures of the rear set being elongated at and near the topsurface of the tracker but circular throughout the remainder of their extent.

4. A tracker having two sets of apertures arranged in pairs, each pair consisting of one front and one rear aperture only, one aperture of each pair being in front of the other and oli'set therefrom longitudinally of the tracker, the oli'set of all the front apertures being on the same side of the corresponding apertures of the rear set and the apertures ot' the rear set being elongated transversely ot the tracker.

5.A A tracker haring frontand rear series of apertures arranged in pairs with a front and a rear aperture in each pair, each aperture of the front series being paired withan aperture of the Nar seriesand offset therefrom longitudinally et' the tracker and the rear apertures being elongated transversely of the tracker.

A tracker having front and rear series of apertures arranged in pairs with a front and a rear aperture in each pair, the rear apertures being offset longitudinally of the tracker with reference to the corresponding front' apertures, all of said rear apertures being otl'set at the same side of the front apertures and said rear apertures being of substantially greater length but of less width than the front apertures.

In witness \\hereof, I hereunto subscribe my name this 2nd day of April A. D., 1910.

PAUL BROWN KLUGH.

lV'itnesses J. CLARKE llamar, lV. l). ToIN. 

